Bob the Builder, the animated children's character, has been knocked off the top of the UK charts by an unknown Austrian DJ.

The BBC character, voiced by Neil Morrissey, has been pushed down to number two by DJ Otzi's Hey Baby (Uhh, Ahh).

DJ Otzi: Song has been hit in Europe

Bob the Builder's version of the single Mambo Number 5 beat off competition from more European dance stars, Supermen Lovers, to go straight to number one last week.

DJ Otzi's tune is a version of Bruce Channel's 1962 hit Hey Baby and has been described as a Europop-style song similar to Aqua and Vengaboys.

It became a huge hit in bars and clubs of holiday destinations like Tenerife during the summer and has already been number one in Ireland.

UK top five singles

1. DJ Otzi - Hey Baby

2. Bob the Builder - Mambo Number 5

3. Supermen Lovers - Starlight

4. N-Trance - Set You Free

5. Samantha Mumba - Baby Come On Over

Mambo Number 5 was Bob the Builder's second hit after Can We Fix It? was the biggest-selling single of 2000 and was Christmas number one.

Other new entries in this week's chart go to N-Trance with Set You Free at number five, Samantha Mumba with Baby Come On Over at number six, and the Chemical Brothers' It Began In Afrika at number eight.

British singing star Dido has a new entry at number 17 with Hunter, two places higher than Welsh rock band Manic Street Preachers' new single Let Robeson Sing.

Dylan: 43rd album of his career

Next week sees the much-hyped chart battle between Kylie Minogue and former Spice Girl Victoria Beckham, who both release singles on Monday.

In this week's album chart, Jamiroquai have held off new releases from The Charlatans and Bob Dylan to keep the number one spot.

The Charlatans' eighth album, Wonderland, is at number two while Bob Dylan's Love and Theft is a new entry at number three.